"use strict";
const path = require("path");
const defaultSettings = require("./src/settings.js");

function resolve(dir) {
  return path.join(__dirname, dir);
}

const name = defaultSettings.title; // 网址标题
const port = 8013; // 端口配置

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  // hash 模式下可使用
  // publicPath: process.env.NODE_ENV === 'development' ? '/' : './',
  publicPath: "/",
  outputDir: "dist",
  assetsDir: "static",
  lintOnSave: process.env.NODE_ENV === "development",
  productionSourceMap: true,
  devServer: {
    port: port,

    overlay: {
      warnings: false,
      errors: true
    },

    proxy: {
      // "/api": {
      //   target: process.env.VUE_APP_BASE_URL,
      //   changeOrigin: true,
      //   pathRewrite: {
      //     "^/api": "api"
      //   }
      // },

      // "/api": {
      //   //前端任何含/api的URL请求都会被反向代理。如http://localhost:8000/xxx/api/source/xxx的请求会变成服务器的反向代理请求
      //   target: "http://192.168.80.183:10081", //原来请求的服务器IP地址会换成此地址，如以上地址会变成http://localhost:5000/xxx/api/source/xxx
      //   changeOrigin: true, // 是否跨域
      //   pathRewrite: { "^/api": "" } // 这里会对反向代理的地址进行重写。比如我的实际后端资源的URI是http://localhost:5000/api/resource，那么不加这个配置属性的话是访问不到我这个有效地址的。这里配置是一个正则替换，替换后就是后端api真正有效的地址了
      // },

      "/auth": {
        target: process.env.VUE_APP_BASE_API,
        changeOrigin: true,
        pathRewrite: {
          "^/auth": "auth"
        }
      }
    }
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name: name,
    resolve: {
      alias: {
        "@": resolve("src"),
        "@crud": resolve("src/components/Crud")
      }
    }
  },
  chainWebpack(config) {
    config.plugins.delete("preload"); // TODO: need test
    config.plugins.delete("prefetch"); // TODO: need test

    // set svg-sprite-loader
    config.module
      .rule("svg")
      .exclude.add(resolve("src/assets/icons"))
      .end();
    config.module
      .rule("icons")
      .test(/\.svg$/)
      .include.add(resolve("src/assets/icons"))
      .end()
      .use("svg-sprite-loader")
      .loader("svg-sprite-loader")
      .options({
        symbolId: "icon-[name]"
      })
      .end();

    // set preserveWhitespace
    config.module
      .rule("vue")
      .use("vue-loader")
      .loader("vue-loader")
      .tap(options => {
        options.compilerOptions.preserveWhitespace = true;
        return options;
      })
      .end();

    config
      // https://webpack.js.org/configuration/devtool/#development
      .when(process.env.NODE_ENV === "development", config =>
        config.devtool("cheap-source-map")
      );

    config.when(process.env.NODE_ENV !== "development", config => {
      config
        .plugin("ScriptExtHtmlWebpackPlugin")
        .after("html")
        .use("script-ext-html-webpack-plugin", [
          {
            // `runtime` must same as runtimeChunk name. default is `runtime`
            inline: /runtime\..*\.js$/
          }
        ])
        .end();
      config.optimization.splitChunks({
        chunks: "all",
        cacheGroups: {
          libs: {
            name: "chunk-libs",
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: "initial" // only package third parties that are initially dependent
          },
          elementUI: {
            name: "chunk-elementUI", // split elementUI into a single package
            priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
          },
          commons: {
            name: "chunk-commons",
            test: resolve("src/components"), // can customize your rules
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true
          }
        }
      });
      // config.optimization.runtimeChunk('single')
    });
  },
  transpileDependencies: ["vue-echarts", "resize-detector"]
};
